You also have to screen out smoke tokens and burnt bean tokens that hinder your roasting, and reject bean tokens that spoil the taste. It is important to control the contents of your bag utilizing flavor effects and unique effects caused by placing tokens on the roast board.
There are 22 varieties of beans in the game. In one game, you try to roast three of them, and your roaster title is awarded based on the total score. Enjoy the world of coffee-roasting, and aim for the ultimate title "Meister."